Project & Solution

Project & Solution

Solar photovoltaic (PV) system surge protection

Not only house owners install a PV system on their rooftop but also private operating companies make more and more investments in shared systems, which are erected on large-surface roofs, on traffic structures, or unused open areas. Causes for surges in PV systems are inductive or capacitive voltages deriving from lightning discharges as well as lightning surges and switching operations in the upstream power supply system. The following diagram shows the surge protection concept for a PV system on a building without lightning protection system.

Possible installation sites of the surge protective devices can be: Generator junction box, DC input of the inverter, 230 V side of the inverter.

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Our certificates

Our main products are TUV certified according to IEC61643-11:2011, all of the products are CE certifed according to EN61643-11:2012, EN50539 and EN62561. Some products have achieved the test report of accredited laboratories with CNAS and ILAC, according to GB18802.1:2011.